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#include "udf.h"

#define h2o 0
#define NUM_SPECS 4

DEFINE_SOURCE(h2o_source,c,t,dS,eqn)
{
real source;
real T_Previous;
real T_Current;
real T;
real time_step;
real h2o_mass_fraction;
real heat_rate;

T_Previous=C_T_M1(c,t);
T_Current=C_T(c,t);
T=fabs(T_Previous-T_Current);
time_step=CURRENT_TIMESTEP;
h2o_mass_fraction=C_YI(c,t,h2o);
heat_rate=T/time_step;

if(T_Current<=373)
{
  source=h2o_mass_fraction*111*heat_rate;
  dS[eqn]=0;
   }
if(T_Current>373)
{
  source=0;
  dS[eqn]=0;
  }
return source;
}

[ Last edited by ĽÈÝÁèܰ on 2012-2-28 at 15:28 ]
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